One pion production in pp collisions at 16.2 GeV/c

Y. Gnat*, G. Alexander, O. Benary, S. Dagan, J. Grunhaus, A. Levy, Y. Oren, J. Schlesinger

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


A study of pp interactions at an incident momentum of 16.2 GeV/c leading to two-prong non-strange final states was carried out in an exposure of the 2m CERN hydrogen bubble chamber. The c.m. angle and momentum distributions for the outgoing particles in the final states pnπ+ and ppπ0 are presented and discussed. These final states were analysed in terms of quasi two-body final states - N(Nπ), with the pion-nucleon system in an I = 1 2 or I = 3 2 state. A determination of these two isospin amplitudes and their interference term is then carried out. The reaction pp → pnπ+ is found to be well described by a Reggeized exchange model, as well as by a double Regge-exchange model.

Original languageEnglish
Pages (from-to)333-354
Number of pages22
JournalNuclear Physics, Section B
Issue number2
StatePublished - 9 Apr 1973


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